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https://issues.apache.org/jira/browse/OAK-3395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14747175#comment-14747175
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Thomas Mueller commented on OAK-3395:
-------------------------------------
Other than that, it looks good to me.
As for ExternalSort, some cleanup and more tests would be good, for example
there are unused methods, methods that use the default locale (which is
problematic; I would probably force specifying the character set), weird
identifier names (DEFAULTMAXTEMPFILES, filetobesorted), line breaks. Code
coverage of the tests is not that great. But that could be done in a separate
issue.
> RevisionGC fails for JCR paths having line feed characters
> ----------------------------------------------------------
>
> Key: OAK-3395
> URL: https://issues.apache.org/jira/browse/OAK-3395
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: mongomk, rdbmk
> Reporter: Chetan Mehrotra
> Assignee: Chetan Mehrotra
> Priority: Minor
> Fix For: 1.3.7, 1.2.6, 1.0.21
>
> Attachments: OAK-3395-1.patch
>
>
> RevisionGC fails with error while processing any id (derived from JCR path)
> having line feed or carriage return char
> This happens because it relies on Oak Commons StringSort and ExternalSort
> which works with line delimited string and having an id with line break would
> break this sorting logic. Error reported is like
> {noformat}
> java.lang.AssertionError: Invalid id /1442211320
> at
> org.apache.jackrabbit.oak.plugins.document.util.Utils.getDepthFromId(Utils.java:337)
> at
> org.apache.jackrabbit.oak.plugins.document.NodeDocumentIdComparator.compare(NodeDocumentIdComparator.java:38)
> at
> org.apache.jackrabbit.oak.plugins.document.NodeDocumentIdComparator.compare(NodeDocumentIdComparator.java:30)
> at java.util.TimSort.countRunAndMakeAscending(TimSort.java:324)
> at java.util.TimSort.sort(TimSort.java:203)
> at java.util.TimSort.sort(TimSort.java:173)
> at java.util.Arrays.sort(Arrays.java:659)
> at java.util.Collections.sort(Collections.java:217)
> at
> org.apache.jackrabbit.oak.commons.sort.ExternalSort.sortAndSave(ExternalSort.java:279)
> at
> org.apache.jackrabbit.oak.commons.sort.ExternalSort.sortInBatch(ExternalSort.java:218)
> at
> org.apache.jackrabbit.oak.commons.sort.ExternalSort.sortInBatch(ExternalSort.java:257)
> at
> org.apache.jackrabbit.oak.commons.sort.StringSort$PersistentState.sort(StringSort.java:191)
> at
> org.apache.jackrabbit.oak.commons.sort.StringSort.sort(StringSort.java:88)
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector$DeletedDocsGC.ensureSorted(VersionGarbageCollector.java:383)
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector$DeletedDocsGC.getDocIdsToDelete(VersionGarbageCollector.java:274)
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector$DeletedDocsGC.removeDeletedDocuments(VersionGarbageCollector.java:296)
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector$DeletedDocsGC.removeDocuments(VersionGarbageCollector.java:241)
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector.collectDeletedDocuments(VersionGarbageCollector.java:154)
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector.gc(VersionGarbageCollector.java:105)
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGCDeletionTest.gcWithPathsHavingNewLine(VersionGCDeletionTest.java:203)
> {noformat}
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